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High-performance grindingFor many applications
Hammer mills for many applicationsThe quality and know-how inherent in ham-
mer mills are backed by over a century of
experience in the feed milling and other re-
lated industries around the world. The re-
quirements for grinding a large number of
special products have led to the develop-
ment of hammer mills that can be adapted
to almost any application, regardless of
whether coarse or fine grinding is required,
e.g. raw materials for the production of ani-
mal feed, fish feed, pet food, and biomass
products, such as wood flakes, straw, and
other surplus materials.
A complete solutionThe correct combination of hammer mill
type, screens, hammers, speed, feeding
system, and air suction through the ham-
mer mill ensures the required grinding re-
sults and creates optimum conditions for
subsequent processes, such as mixing,
pelleting, and extrusion.
Thus. the grinding process is not merely
a question of the hammer mill alone, but
also includes everything from feed system
to discharge hopper, aspiration filter, and
electronic control system.
Hammer mill
02
0303
Optimill, type 500/700/900Screen frames are mounted inside large sliding access doors. The mill rotor is stopped during screen change.
Optimill coarse grindersfor cattle, pig, and poultry feed
Optimill, type 500/700/900
Optimill, type 1201
Optimill coarse grinders
Optimill seriesThe Optimill series consists of hammer mills
for raw material grinding of normal to coarse-
structured feed products, such as cattle, pig
and poultry feeds. The Optimill series has
grinding chamber diameters of 1,100 mm
and widths from 500 mm to 1,200 mm. The
operating speed is 1,500/1,800 rpm.
Optimill features Large screen area
Optimum particle size range
Optimill, type 1201Four screen sections for minimiza-tion of screen costs, particle size flexibility, and ease changing.
Coarse-grained particles
High capacity
Low energy consumption
Reduced noise level
The patented, closed rotor design can
save up to 20% in energy consumption
compared to traditional rotor designs
Feed system for uniform screen load
Low consumption – high performanceThe closed, aerodynamic rotor design directs
the material straight out towards the screen,
where highly effective, low- energy grinding
takes place.
04
Multimill and 4360 fine grindersfor aqua feed and pet food
Multimill seriesThe Multimill series consists of fine-grind-
ing hammer mills for high-capacity produc-
tion of fish feed, pet food, and other fine-
ground materials. The Multimill series has
grinding chamber diameters of 650 mm
and widths from 450 mm to 1,400 mm. The
operating speed is 3,000/3,600 rpm.
Multimill features High-capacity particle size reduction
Superior feed quality
Protection of nutritive value of feed
ingredients through low temperature
operation
Energy-saving, closed rotor design
Type 4360 with large sliding doors mounted on cam rollers for smooth operation
Multimill, type 1000 BScreen change through front doors.
Type 4360 with large sliding doors
for smooth operation
Multimill, type 1400 C Type 4360 Multimill, type 1000 B
Multimill and 4360 fine grinders
Technical data
Hammer mill Motor power Rotor rpm Screen area Filter air
Type Multimill kW 50/60 Hz dm² m³/h
650/630 75-110 3000/3600 83 4000
650/800 90-160 3000/3600 106 5000
650/1000 B 160-250 3000/3600 146 6300
650/1400 C 200-355 3000/3600 186 9000
Type Optimill
500 160 1500/1800 143 3600
700 250 1500/1800 200 5000
900 315 1500/1800 257 6400
1201 355 1500/1800 346 8800
Type 4360
4360 450 1500/1800 468 16500
05
Grinding techniquefor high controllability
Design and functionThe hammer mills are fed radially for dual-
rotational operation to achieve uniform
wear and full utilization of screens and
hammers. Models with tangential inlets
are available for low-density products. The
hammer mills have a directly coupled mo-
tor mounted on a base frame. The front
doors are bottom-hinged and open on
sliding rails. All operating points have elec-
tronic safety equipment. The hammer mills
are supplied with a separator and a mag-
net above the inlet to protect the grinding
chamber against damage and spark risks
from foreign objects in the material flow.
99.95
99.8
99.699.098.0
95.0
90.0
80.0
70.0
60.050.040.030.020.0
10.0
5.0
1.0
% passing through
0.125 0.18 0.25 0.355 0.50 0.71 1.0 1.4 2.0 30.0
Screen(mm)
MultimillØ0.75, 23% Multimill
Ø1.25, 25%
OptimillØ3.0, 51%
Feeding devices
Distributor screw
Pocket feeder
Feeding system for uniform loadBy feeding the material over the full length
of the grinding chamber, the particle size
can be controlled accurately and the ham-
mers and screens have uniform loading,
resulting in longer lifetime of wear parts and
higher output per kilowatt.
The feed system, which is available as
double screw and separator or as pocket
feeder with integrated separator and distri-
bution roll, can be adjusted to suit all raw
material types.
06
ANDRITZ grinding units Feeder
Distributer screw
Separator
Hammer mill
Collection bin
Air lock
Aspiration filter
Fan
Operating platform
Pre bin
The ANDRITZ product range includes
every key processing machine in the feed
production line, including weighing ma-
chine, mixer, feed expander, pellet mill,
extruder, dryer, cooler, coating systems,
dosing device for micro-liquids, crumbler,
filter, and control systems.
Grinding unitsfor stand alone applications
Screw feeder
Separator
Feeding devices
Hammer mill control The entire grinding process is controlled by
an AFB-HM1 or HMCPS control unit in a
cabinet with front operating panel, provid-
ing a full view of all operational functions.
The efficient feeding system control opti-
mizes product change and mill capacity
utilization.
07
215 GB
All data, information, statements, photographs, and graphic illustrations in this leaflet are without any obligation and raise no liabilities to or form part of any sales contracts of ANDRITZ AG or any affiliates for equipment and/or systems referred to herein. © ANDRITZ AG 2015. All rights reserved. No part of this copyrighted work may be reproduced, modified or distributed in any form or by any means, or stored in any database or retrieval system, without the prior written permission of ANDRITZ AG or its affiliates. Any such unauthorized use for any purpose is a violation of the relevant copyright laws. ANDRITZ AG, Stattegger Strasse 18, 8045 Graz, Austria. L
0715
ANDRITZ Feed & Biofuel A/SGlentevej 5–7
6705 Esbjerg, DenmarkPhone: +45 72 160 300
ANDRITZ is truly a global organization
– but also with local presence. We are
represented all over the world. The global
market for feed technologies is served from
five main locations:
Esbjerg, Denmark
Sanshui, Guangdong Province, China
Geldrop, Netherlands
Muncy, PA, USA
Humenné, Slovakia
In addition, we operate from several strate-
gic regional sales, engineering, and service
locations in China, Vietnam, India, Australia,
Mexico, Venezuela, Brazil, Chile, France,
the UK, and Germany – and are also repre-
sented locally by agents and distributors in
many other markets.
AUSTRALIAANDRITZ Feed & Biofuel Australia Division of ANDRITZ Pty. Ltd.Phone: +61 3 8795 [email protected]
BRAZILANDRITZ Feed & Biofuel Brasil Ltda.Phone: +55 51 3333 [email protected]
CHILE ANDRITZ Feed & Biofuel Chile Ltd.Phone: +56 2214 [email protected]
CHINAANDRITZ Feed & Biofuel ChinaPhone: +86 21 [email protected]
FRANCEANDRITZ Feed & Biofuel France Division of ANDRITZ S.A.S.Phone: +33 24 75 06 [email protected]
GERMANYANDRITZ Feed & Biofuel Germany Division of ANDRITZ GmbHPhone: +49 2104 9197 [email protected]
INDIAANDRITZ Feed & Biofuel India Rep. Office of ANDRITZ Feed & Biofuel A/SPhone: + 91 87544 [email protected]
MEXICOANDRITZ Feed & Biofuel Mexico Division of ANDRITZ HYDRO S.A. de C.V.Phone: +52 229 178 [email protected]
NETHERLANDSANDRITZ Feed & Biofuel B.V.Phone: +31 40 [email protected]
UKANDRITZ Feed & Biofuel Ltd.Phone: +44 1482 [email protected]
USAANDRITZ Feed & Biofuel USA Division of ANDRITZ Inc.Phone: +1 570 546 [email protected]
VENEZUELAANDRITZ Feed & Biofuel Venezuela Rep. office of ANDRITZ Feed & Biofuel A/SPhone: +58 241 [email protected]
VIETNAMANDRITZ Feed & Biofuel Vietnam Rep. office of ANDRITZ Feed & Biofuel A/SPhone: +84 8 6253 [email protected]
Where to find us Global supplier – local presence
CONTACT